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math.PR2016
Regularity properties and simulations of Gaussian random fields on the Sphere cross Time
Jorge Clarke de La Cerda, Alfredo Alegría, Emilio Porcu +1
We study the regularity properties of Gaussian fields defined over spheres cross time. In particular, we consider two alternative spectral decompositions for a Gaussian field on $\…
math.PR2006★ 4 cited
Quasi-arithmetic means of covariance functions with potential applications to space-time data
E. Porcu, J. Mateu, G. Christakos
The theory of quasi-arithmetic means is a powerful tool in the study of covariance functions across space-time. In the present study we use quasi-arithmetic functionals to make inf…